Agree. It is worth slowing down a little and getting the neck sized where you want it without sending it around the block a few times before you get it there...I've removed the expander balls from all of my Bushing Dies . Found the appropriate Bushing to move the neck a minimal amount of "close-down" , and use a Carbide expander mandrel . I think many use the wrong Bushing . Close the neck to far , causing over-work of the brass , and then over-stress the case and neck , causing mis-alignment of the neck when they use any pin or expander .